Effects of iron oxides on the anaerobic codigestion performances of the Pennisetum hybrid and kitchen waste

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dc.contributor.authorWo, Defang
dc.contributor.authorBi, Guican
dc.contributor.authorLi, Lianhua
dc.contributor.authorKang, Xihui
dc.contributor.authorKong, Xiaoying
dc.contributor.authorJiang, Enchen
dc.contributor.authorXie, Jun
dc.contributor.funderNational Natural Science Foundation of Chinaen
dc.contributor.funderGuangdong Science and Technology Departmenten
dc.contributor.funderKey Research and Development Program of Jiangxi Provinceen
dc.date.accessioned2022-09-14T12:06:56Z
dc.date.available2022-09-14T12:06:56Z
dc.date.issued2022-08-12
dc.date.updated2022-09-14T11:31:24Z
dc.description.abstractThe addition of iron oxides in anaerobic digestion can increase conversion efficiency. In this study, we investigated the effects of the addition of Fe2O3, Fe2O3 nanoparticles, Fe3O4, and Fe3O4 nanoparticles with different concentrations (0.5%–1.5%) on the anaerobic codigestion of a Pennisetum hybrid and kitchen waste in a batch-mode mesophilic experiment. The results indicated that the additives with different valence states and particle sizes had different effects on the anaerobic codigestion of the Pennisetum hybrid and kitchen waste. The addition of 0.5% Fe2O3 [with a biogas production of 286.0±61.8  mL/g volatile solid (VS)] and 0.5% Fe3O4 (with a biogas production of 309.1±22.3  mL/g VS) improved the cumulative biogas yield by 23.5% and 37.9%, respectively, compared with that of the control group (with a biogas production of 237.2±30.1  mL/g VS). Further correlation analysis showed that pH and total ammonia nitrogen were positively correlated with cumulative biogas yield, whereas bicarbonate alkalinity concentration/volatile alkalinity concentration and volatile fatty acids were negatively correlated with cumulative biogas yield. This study provided insights on anaerobic codigestion of the Pennisetum hybrid and kitchen waste in the presence of iron oxides, which will be beneficial for further studies in the field of renewable energy production.en
dc.description.sponsorshipNational Natural Science Foundation of China (21978289); Guangdong Science and Technology Department (Science and Technology Planning Project of Guangdong Province: 2017B020238005); Key Research and Development Program of Jiangxi Province (20171ACG70020)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid04022062en
dc.identifier.citationWo, D., Bi, G., Li, L., Kang, X, Kong, X., Jiang, E. and Xie, J. (2022) 'Effects of iron oxides on the anaerobic codigestion performances of the Pennisetum hybrid and kitchen waste', Journal of Environmental Engineering, 148(10), 04022062. doi: 10.1061/(ASCE)EE.1943-7870.0002046en
dc.identifier.doi10.1061/(ASCE)EE.1943-7870.0002046en
dc.identifier.eissn1943-7870
dc.identifier.issn0733-9372
dc.identifier.issued10en
dc.identifier.journaltitleJournal Of Environmental Engineeringen
dc.identifier.urihttps://hdl.handle.net/10468/13602
dc.identifier.volume148en
dc.language.isoenen
dc.publisherAmerican Society of Civil Engineersen
dc.rights© 2022, ASCE. This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at: https://doi.org/10.1061/(ASCE)EE.1943-7870.0002046en
dc.subjectBiogasen
dc.subjectCodigestionen
dc.subjectIron oxidesen
dc.subjectKitchen wasteen
dc.subjectPennisetum hybriden
dc.titleEffects of iron oxides on the anaerobic codigestion performances of the Pennisetum hybrid and kitchen wasteen
dc.typeArticle (peer-reviewed)en
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